Refrigerator



July 28, 1925. 1,547,887

J. B. OTTENHEIMER REFRIGERATOR Filed March 5, 1924 Z 6 lll l l l/I/ l lll Il 4 a? 4 i I e? 6 V/ K f J 3f? 4 Y 317?" J .ff

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/V (I 4 Y me/rito@ @(30 I f @6M/5MM @H101 new Patented July 28, l1925.

UNITED STATES' JACOB B. OTTENHEIMER, OF BALTIMORE,

PATENT OFFICE.

MARYLANDQASSIGNOR rro OTTENHEIMER BROTHERS, INCORPOIBATED, 0FBALTIMQRE,` MARYLAND, A CORPORATION OF MARYLAND.

REFRIGERATOR.

Application filed March 5, 1924. Serial No. 697,060.

' pockets in the food chamber, distribution of the air suction or pullto all parts of said chamber, and more effective flow of air over theice..

A'further object is to provide means for controlling the flowof airthrough the chambers.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention consists of certain novel details ofconstruction and combinations of parts which will be ,hereinafter morefully described and pointed out in the claims, it being understood thatvarious changes may be made in the construction and arrangement withoutdeparting from the spirit of the invention.

In the accompanying. drawingsthe pref ferred forms of the invention havebeen shown.

In said drawings- Figure l is a vertlcal transverse section I throughthe refrigerator.

.Figure 2 is a section on line 2 2, Figure 1.

Figure 3 is a section on line 3-3, Figure 1.

Figure 4 is a section through a portion of a refrigerator having acontrolling shutter.

Referring to the figures by characters of reference, 1 designates thehousing or casing of the refrigerator .having insulated Walls, top andbottom, as shown. The vbottom 2 of the ice compartment 3 is locatedabove the bottom of the housing and one side of the lower end of apartition 4 which divides the interior of the refrigerator into the icecompartment 3 and a food compartment 5.y An air outlet is located at thetop ofthe food compartment, as shown at'5. This opens through the topwall of the food compartment and' is spaced away from the partition wall4. For best effect it is located at the center of the `top `of the foodcompartment and extends from front to rear thereof. This outlet opensinto a flue 6 extending laterally and opening into the top of the icechamber directly above the partition 4. Another air outlet 7 is formedin the bottom`2 and extends from the front to back thereof lat thecenter. The usual ice supporting tray bridges this opening, as at 8 andis so supported as not to interfere with the circulation of air. Thewalls, top and bottom of the casing 1 are suitably insulated as is alsothe partition 4.

It will be'apparent that when ice is placed in compartment 3the chilledair will ow "downwardly through outlet 7 and displace thewarm air whichrises within compartment 5. This warm air flows through the outlet 5 andflue 6 to the top of the ice compartment 3 where it is chilled and flowsdownwardly to the outlet 7. The circula tion thus set up creates adecided pull7 upon the air in all .portions of the compartment 5 so thatthere are no dead air pockets such as usually found in the corners andalong one or more of the walls of the provision compartments such asusually constructed.

This result follows from the careful location of the openings 5 and 7and in some degree from the fact that these extend from front to back-of the refrigerator. The location of the outlet 5 in the top wall ofthe food compartment minimizes the danger of choking of the outlet byfoodstuffs on the top shelf S, and the relative arrangements of thecompartments allows for greater shortage of ice than would be possiblewith other arrangements where the same food storage space is used.

The construction shown in Fig. 4 is esi sentially identical with thatshown in the remaining figures, except that the opening 5 is'larger thanthat shown in the remaining figures, and is ,controlled by adjustablelouvers or shutters 9, by which the rate of air circulation may becontrolled if desir'ed. p

What is claimed is :4

1. A refrigerator comprising in combination a heat insulated casing; apartition extending vertically within the casing from a point below itstop to a point above` its bottom, said L:partition serving to isolate acooling medium receiving space from a food receiving space, both withinsaid casing, ex-

cept as to convection air currents circulating between saidl spaces overits top and obeneath its bottom; means within said casing serving todefine a smooth How duct for relatively warm air leadingthrough the topwall of .said food receiving space at a point y spaced from saidpartition and thence over the top of said partition and into saidcooling medium receiving space; and means for supporting a coolingmedium labove the lower margin of sai'd vertical partition.

2. A refrigerator comprising in combination a heat insulated casing; aheat insulated partition extending vertically Within the casing from apoint below its top to a point above its bottom, said partition servingto isolate a cooling medium receiving space from a food receiving space,both within said casing, except as to .convection air currentscirculating between said spaces over its top and beneath its bottommeans within said casing-l serving to define a smooth flow duct forrelatively warm air leading through the top Wall of said food receivingspace substantially at the center thereof, and thence over saidpartition and into said cooling medium receiving space, said ductextending the full depth of said spaces from front to back of therefriger.

ed partition extending vertically within the casing from a point belowits top to a point above its bottom, 'said partition serving to isolatea cooling medium receiving space from a. food receiving space, bothWithin said casing, except as to convection air currents circulatingbetween said spaces over its top and beneath its bottom; means Withinsaid casing serving'to define a smooth flow duct for relativelyw'arm airleading through the top wall of said food receiving space at a pointspaced from said partition and thence passing over-said partition andinto said cooling medium receiving space, said duct extendingsubstantially the full depth of said space from front to back of therefrigerator; adjustable means for regulating the flow through saidduct; and

meansl for supporting a cooling medium4 above the lower margin of saidvertical partition. g A f y In testimony whereof I aliix my signa.-ture.

JACOB B. OTTENHEIMER.`

